Z8F2480AN020SG Zilog, Z8F2480AN020SG Datasheet - Page 296
Z8F2480AN020SG
Manufacturer Part Number
Z8F2480AN020SG
Description
MCU 8BIT 24KB FLASH 44LQFP
Manufacturer
Zilog
Series
Encore!® XP®r
Specifications of Z8F2480AN020SG
Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
Number Of I /o
37
Program Memory Size
24KB (24K x 8)
Program Memory Type
FLASH
Ram Size
3K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-LQFP
Processor Series
Z8F248x
Core
eZ8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
37
Number Of Timers
3
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
On-chip Adc
10 bit, 8 Channel
For Use With
770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU269-4643 - KIT DEV Z8 ENCORE XP 28-PIN269-4630 - DEV KIT FOR Z8 ENCORE 8K/4K269-4629 - KIT DEV Z8 ENCORE XP 28-PIN269-4628 - KIT DEV Z8 ENCORE XP 8-PIN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
269-4676
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z8F2480AN020SG
Manufacturer:
Zilog
Quantity:
85
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PS025011-1010
Table 159. Write Status Byte
BITS
FIELD
DEFAULT
VALUE
Note:
Byte Write
To write a byte to the NVDS array, the user code must first push the address, then the data
byte onto the stack. The user code issues a
Write routine (
working register R0. The bit fields of this status byte are defined in
user code should pop the address and data bytes off the stack.
The write routine uses 16 bytes of stack space in addition to the two bytes of address and
data pushed by the user code. Sufficient memory must be available for this stack usage.
Because of the flash memory architecture, NVDS writes exhibit a non-uniform execution
time. In general, a write takes 136 s (assuming a 20 MHz system clock). For every 200
writes, however, a maintenance operation is necessary. In this rare occurrence, the write
takes up to 58 ms to complete. Slower system clock speeds result in proportionally higher
execution times.
NVDS byte writes to invalid addresses (those exceeding the NVDS array size) have no
effect. Illegal write operations have a 7 s execution time.
When the NVDS array size is 256 bytes, there is no address exceeding the size, the
bit is of no use.
7
0
Reserved—Must be 0.
FE—Flash Error
If Flash error is detected, this bit is set to 1.
IGADDR—Illegal address
When NVDS byte writes to invalid addresses (those exceeding the NVDS array size)
occur, this bit is set to 1.
WE—Write Error
A failure occurs during writing data into Flash. When writing data into a certain
address, a read back operation is performed. If the read back value is not the same as
the value written, this bit is set to 1.
6
0
0x43FD
Reserved
). At the return from the sub-routine, the write status byte resides in
5
0
P R E L I M I N A R Y
4
0
CALL
3
0
instruction to the address of the Byte
Z8 Encore! XP
FE
2
0
Product Specification
Non-Volatile Data Storage
Table
IGADDR
1
0
®
159. Also, the
F1680 Series
IGADDR
WE
0
0
282
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